| A Comprehensive Survey on Graph Neural Networks | IEEE Transactions on Neural Networks and Learning Systems | 2021 | 1.1K |
| A Comprehensive Survey on Transfer Learning | Proceedings of the IEEE | 2021 | 603 |
| Automatic detection of coronavirus disease (COVID-19) using X-ray images and deep convolutional neural networks | Pattern Analysis and Applications | 2021 | 554 |
| Twelve years of SAMtools and BCFtools | GigaScience | 2021 | 533 |
| Review of Artificial Intelligence Techniques in Imaging Data Acquisition, Segmentation, and Diagnosis for COVID-19 | IEEE Reviews in Biomedical Engineering | 2021 | 520 |
| The Arithmetic Optimization Algorithm | Computer Methods in Applied Mechanics and Engineering | 2021 | 500 |
| seaborn: statistical data visualization | Journal of Open Source Software | 2021 | 495 |
| Non-fullerene acceptors with branched side chains and improved molecular packing to exceed 18% efficiency in organic solar cells | Nature Energy | 2021 | 457 |
| Intelligent Reflecting Surface-Aided Wireless Communications: A Tutorial | IEEE Transactions on Communications | 2021 | 372 |
| Solar cell efficiency tables (version 57) | Progress in Photovoltaics: Research and Applications | 2021 | 356 |
| Review of deep learning: concepts, CNN architectures, challenges, applications, future directions | Journal of Big Data | 2021 | 348 |
| Metal halide perovskites for light-emitting diodes | Nature Materials | 2021 | 322 |
| Single-Junction Organic Photovoltaic Cell with 19% Efficiency | Advanced Materials | 2021 | 302 |
| 1D convolutional neural networks and applications: A survey | Mechanical Systems and Signal Processing | 2021 | 277 |
| Transmission of SARS-CoV-2 by inhalation of respiratory aerosol in the Skagit Valley Chorale superspreading event | Indoor Air | 2021 | 274 |
| Increased plastic pollution due to COVID-19 pandemic: Challenges and recommendations | Chemical Engineering Journal | 2021 | 272 |
| 0D to 3D carbon-based networks combined with pseudocapacitive electrode material for high energy density supercapacitor: A review | Chemical Engineering Journal | 2021 | 257 |
| A Joint Learning and Communications Framework for Federated Learning Over Wireless Networks | IEEE Transactions on Wireless Communications | 2021 | 255 |
| A review of the recent advances on the treatment of industrial wastewaters by Sulfate Radical-based Advanced Oxidation Processes (SR-AOPs) | Chemical Engineering Journal | 2021 | 249 |
| ORB-SLAM3: An Accurate Open-Source Library for Visual, Visual–Inertial, and Multimap SLAM | IEEE Transactions on Robotics | 2021 | 245 |
| Layer-by-Layer Processed Ternary Organic Photovoltaics with Efficiency over 18 | Advanced Materials | 2021 | 243 |
| A digital supply chain twin for managing the disruption risks and resilience in the era of Industry 4.0 | Production Planning and Control | 2021 | 238 |
| Lipid nanoparticles for mRNA delivery | Nature Reviews Materials | 2021 | 228 |
| Biocatalysis: Enzymatic Synthesis for Industrial Applications | Angewandte Chemie - International Edition | 2021 | 226 |
